All four flavors come in a 12-pack that costs $13, the company told Business Insider. The beers are being rolled out to all Walmart US stores this year, and they are currently available at about 2,200 stores, the company said.

The beers are brewed by Rochester, New York-based Trouble Brewing. Getting into craft beer is a smart move for Walmart.

The market for hoppier, fuller-flavored beers has been growing at a much faster rate than the overall beer market in recent years.

Walmart

Craft brewers reported a 13% increase in volume in 2015, marking their eighth straight year of double-digit growth, according to the Brewers Association. In the same year, the total US beer market reported a 0.2% drop in volume.

Walmart's foray into craft beer is a threat to Anheuser-Busch InBev — the world's largest beer manufacturer and the maker of Budweiser, Michelob, and Rolling Rock — which has been snatching up craft-beer brands in recent years.